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I have zip file and I want to know which library can handle it? Is there built-in method in the.netframework can unzip zip file?

user496949
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5 Answers5

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SharpZipLib is a good choice to use with ZIP files in .NET.

See https://github.com/icsharpcode/SharpZipLib or http://icsharpcode.github.io/SharpZipLib/ for more information.

Eugen
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Pieter van Ginkel
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  • I've used this in a few projects and had no problems. Simple and straightfoward. As an aside, it's GPL I think. – kmarks2 Nov 12 '10 at 16:12
  • +1 Works perfectly! Here the link to the simplest example http://wiki.sharpdevelop.net/SharpZipLib_FastZip.ashx – kiewic Jul 02 '11 at 16:31
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You can use the System.IO.Compression.DeflateStream class to unzip your file. There's an example there, too.

Federico González
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  • -1 decompressing a stream is not the same as unpacking a zip archive. From the documentation you linked: *"This class does not inherently provide functionality for adding files to or extracting files from .zip archives."* – Wim Coenen Nov 12 '10 at 15:22
  • -1 ZIP is a collection of files, like .tar.gz in unix is, not just a stream like a .gz. – Pieter van Ginkel Nov 12 '10 at 16:17
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Use either GZipStream or DeflateStream in System.IO.Compression.

http://msdn.microsoft.com/en-us/library/system.io.compression.deflatestream.aspx

http://msdn.microsoft.com/en-us/library/system.io.compression.gzipstream.aspx

GZipStream is similar to DeflateStream, but contains a few extra bits to make it friendly with applications like WinZip.

Alex Humphrey
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Have a look at DotNetZip, created by Cheeso. See also this other answer.

Community
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Wim Coenen
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Take a look at this: Free compression library for C# which supports 7zip (LZMA)

Community
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Ricardo Nolde
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